An unintended consequence of Blake Lively's breakup with Leonardo DiCaprio: increased scrutiny of her lodgings during her weekend trip to Boston, where she was spotted in the company of her "Green Lantern" co-star Ryan Reynolds.

According to the New York Daily News, the starlet holed up in the rented apartment of the former Mr. Scarlett Johansson, who is shooting "R.I.P.D." in town.

Lively's rep, however, insists she crashed at a hotel while taking in the Beantown sights with a girlfriend.

That must have been one fully equipped hotel, because the Boston Herald says Blake, who reportedly accompanied Reynolds to Boston by train from New York, spent $270 during a grocery run.

"She bought general groceries, mostly healthy stuff," shares a store staffer. "And a couple of pumpkins. Some oats and grains, fruits and vegetables, and toothpaste. She bought a lot of stuff."

Reynolds, 34, and Lively, 24, were also spotted noshing at a local sushi joint, where the actress was participating in a cooking event, according to Gossip Cop (that might explain the groceries).

Whether just friends or something more, their hang-time came just as news of Lively's split with DiCaprio was confirmed by their respective reps. Now, Us Weekly delves into what might have tanked the fair-haired pair's five-month, continent-hopping romance.

"Blake wasn't ready to move to the next level," says a source. "It was just too much, too quickly. They got hot and heavy so fast, and Blake wasn't ready to settle down."

Leo, 36, who avoided settling down with long-term squeezes Bar Refaeli and Gisele Bundchen, "is looking for someone to eventually start a family with," continues the insider. "That's not where she's at. She's only 24!"

Echoes another spy, "He's not in a rush to get married, but he's more mature. They're not in the same place right now."